#!/bin/bash

# Slackware build script for the SimH 3.X classic stream

# Copyright 2022 Antonio Leal, Lisbon, Portugal
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=simh-classic
VERSION=${VERSION:-3.11_0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
BASENAME=${BASENAME:-simhv311-0}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

set -e
CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG

if [ -e $CWD/$BASENAME.zip ]; then
  unzip $CWD/$BASENAME.zip
  mv sim/* .
  rmdir sim
  echo
else
  echo "Could not find file "$CWD/$BASENAME.zip
  echo "Aborting..."
  exit 1
fi

# Patch the sources in order for uc15 to compile...
# gzipped to preserve CRLF line endings
zcat $CWD/pdp11_defs.h.patch.gz | patch PDP11/pdp11_defs.h

chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

chmod 0755 .

# make the simulators
make -j1 all

mkdir -p $PKG/slackbuild/opt/$PRGNAM/bin
mv BIN/* $PKG/slackbuild/opt/$PRGNAM/bin

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/slackbuild/usr/doc/$PRGNAM-$VERSION
cp -a \
  doc/* \
  $PKG/slackbuild/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/slackbuild/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $CWD/pdp11_defs.h.patch.gz > $PKG/slackbuild/usr/doc/$PRGNAM-$VERSION/pdp11_defs.h.patch.gz

mkdir -p $PKG/slackbuild/opt/$PRGNAM/doc/$PRGNAM-$VERSION
cp -a doc/*  $PKG/slackbuild/opt/$PRGNAM/doc/
cat $CWD/$PRGNAM.SlackBuild > $PKG/slackbuild/opt/$PRGNAM/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild


mkdir -p $PKG/slackbuild/install
cat $CWD/slack-desc > $PKG/slackbuild/install/slack-desc
cat $CWD/doinst.sh > $PKG/slackbuild/install/doinst.sh

cd $PKG/slackbuild/
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
